CVEvulnerability
CVE-2025-68475
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2025-12-22
- Last modified
- 2026-09-28
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-1333
Description
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2, a Regular Expression Denial of Service (ReDoS) vulnerability exists in Fedify's document loader. The HTML parsing regex at packages/fedify/src/runtime/docloader.ts:259 contains nested quantifiers that cause catastrophic backtracking when processing maliciously crafted HTML responses. This issue has been patched in versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2.
Affected configurations
• fedify fedify (< 1.6.13)
• fedify fedify (>= 1.7.0 < 1.7.14)
• fedify fedify (>= 1.8.1 < 1.8.15)
• fedify fedify (>= 1.9.0 < 1.9.2)
Related
Weakness · CWE (1)
- CWE-1333 Inefficient Regular Expression Complexity weakness
References
- https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779 Patch
- https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987a Patch
- https://github.com/fedify-dev/fedify/releases/tag/1.6.13 Product, Release Notes
- https://github.com/fedify-dev/fedify/releases/tag/1.7.14 Product, Release Notes
- https://github.com/fedify-dev/fedify/releases/tag/1.8.15 Product, Release Notes
- https://github.com/fedify-dev/fedify/releases/tag/1.9.2 Product, Release Notes
- https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93 Exploit, Mitigation, Vendor Advisory